Rockwell Automation 20D PowerFlex 700S Drive Ph I Control, Frames 1...11 - Manual (Page 158)

4-4 Troubleshooting
HIM Indication
The HIM also provides visual notification of a fault.
Manually Clearing Faults This section will contain a table that illustrates the HIM keystrokes
necessary to clear faults.
Fault Descriptions Fault Descriptions and Configuration Parameters
Condition Display
Drive is indicating a fault.
The LCD HIM immediately reports the fault condition by
displaying the following:
• “Faulted” appears in the status line
• Fault number
• Fault name
• Time that has passed since the fault occurred
Press Esc to regain control of the HIM
F-> Faulted Auto
0.0 Hz
Main Menu:
Diagnostics
Parameter
— Fault — F24
DC Bus Overvolt
Time since Fault
00:23:52
Step Key(s)
1. Press Esc to acknowledge the fault. The fault information will
be removed so that you can use the HIM.
2. Address the condition that caused the fault.
The cause must be corrected before the fault can be cleared.
3. After corrective action has been taken, clear the fault by one of
these methods.
• Press Stop
• Cycle drive power
• Select “Clear Faults” from Diagnostic - Faults menu
Esc
No. Name Description Action
1 Abs Ovespd Det Motor speed has exceeded the limits set by parameter 30 [Rev
Speed Limit] minus parameter 335 [Abs OverSpd Lim] or parameter
31 [Fwd Speed Limit] plus parameter 335 [Abs OverSpd Lim] 1. Verify the encoder feedback is correct
polarity
2. Verify drive is not in torque mode, Par 110
[Spd/Torq ModeSel], value 2, Torque Ref
-If in torque mode, verify load is present.
3. Verify min/max settings Par 30 [Rev Speed
Lim] and Par 31 [Fwd Speed Lim].
4. Verify the load is not overhauling.
-If the load is overhauling, turn bus regulator
off, Par 414 [Brake/Bus Cnfg], bit 2 [BusRef
High].
2 Vref Decel Fail The value of parameter 301 [Motor Spd Ref] has failed to decrease
during a ramp to zero speed stop. This could possibly be due to a
speed trim from parameters 21 [Speed Trim 1], 22 [Speed Trim 2] or
23 [Speed Trim 3].
3 Encoder 0 Loss One of the following has occurred on encoder 0:
• missing encoder (broken wire)
• quadrature error
• phase loss
SynchLink report the event status to the VPL
which acts according to the configuration of
parameter 365 [Encdr0 Loss Cnfg]. Reconnect
encoder or replace encoder.
4 Encoder 1 Loss One of the following has occurred on encoder10:
• missing encoder (broken wire)
• quadrature error
• phase loss
SynchLink report the event status to the VPL
which acts according to the configuration of
parameter 366 [Encdr1 Loss Cnfg].Reconnect
encoder or replace encoder.